Microstructural evolution and mechanical behavior of 90 micron sized B4C particulates reinforced Al2219 alloy composites

Abstract

The microstructure and mechanical behavior of Al2219 metal alloy with 2, 4, 6, 8 and 10 wt% of B4C composites were studied. The composites comprising 2 to 10 wt% of B4C in Al2219 alloy were amalgamated by liquid metallurgy process. The prepared composites were subjected to the microstructural studies using SEM. Further, the mechanical behavior of Al2219 with B4C composites were tested as per ASTM methods. The SEM characterization identified thorough dispersal of particles in the base alloy. Further, mechanical behavior of Al2219 alloy has been improved with the addition of B4C particles. The enhanced hardness and tensile strengths were obtained in the composites. The ductility and density of the Al2219 alloy was reduced after the inclusion of boron carbide particles. 2020 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Mechanical, Electronics and Computer Engineering 2020: Materials Science.